Ten-Tec 4229 - Rear Panel Mechanical Assembly; Coaxial Connectors and Wafer Switch Mounting; Solder Lugs, DC Connector, and SWR Board Installation

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£14
REAR
PANEL
MECHANICAL
ASSEMBLY
Attach
four
coaxial
connectors
in
holes
provided
and
labeled
ANT
1,2,3
and
4
on
the
panel.
These
are
installed
with
the
square
flanges
on
the
inside
--
unpainted
--
side
of
the
panel
with
the
threaded
portion
through
the
panel.
Attach
each
with
a
3/8"
x
4-40
machine
screw
with
the
heads
on
the
outside
rear
panel.
Place
a
#4
lock
washer
under
the
4-40
Hexnut
and
tighten
all
screws.
(Omit,
for
now,
installation
of
"INPUT
CONNECTOR").
Visually
inspect
each
of
the
two
wafer
switches.
Rotate
the
center
rotor
section
by
gripping
with
umb
and
finger
tip
or
inserting
a
tool
in
the
flat-
ted
shaft
hole.
The
rotor
should
be
free
of
obstruction/s
and
each
of
the
dual
stationary
wiper
contacts
should
engage
the
rotary
contact
on
both
sides
as
it
is
rotated
from
position
to
position.
Should
there
be
a
distortion
such
that
the
fixed
contacts
do
not
contact
the
rotor
contact
or
they
inter-
fere
with
rotation,
careful
adjustment
by
bending
will
correct
the
problem.
Time
spent
now
to
assure
proper
operation
is
much
easier
than
later
when
wiring
is
completed.
Attach
wafer
switch
(S2)
to
the
rear
panel
using
the
two
holes
to
right
of
the
ANT
2
connector.
There
are
two
wafer
switches
in
this
tuner.
$2
is
the
wafer
with
all
solder
terminals
on
one
side
of
the
white
wafer.
Note
that
there
is
a_small
color
coding
on
one
of
the
contacts.
Orient
this
coded
contact
so
that
it
is
facing
you
and
located
to
the
right
of
the
upper
mounting
hole
in
the
panel.
Attach
this
switch
using
7/8"
long
4-40
machine
screws
through
the
panel
from
the
painted
side.
Place
a
7/16"
nylon
spacer
on
each
screw
on
the
inside
of
the
panel,
place
the
switch
on
each
screw
through
the
mounting
holes
in
the
switch
wafer
--
remember
the
location
of
the
coded
terminal.
Place
a
flat
nylon
washer
over
each
screw
and
secure
with
a
4-40
hex
nut
on
each.
Tighten
until
snug.
Attach
wafer
switch
(Sl)
to
the
rear
panel
in
like
manner
to
the
installation
of
S2
above.
This
wafer
mounts
via
the
two
horizontally
related
holes
to
the
left
of,
and
in
line
with,
the
upper
edge
of
the
number
1
antenna
connector
when
viewed
from
the
unpainted
side
of
the
rear
panel.
The
color
coded
con-
tact/s
are
located-~toward
you
and
in
the
upper
half
when
mounted.
Install
a
single
solder
lug
immediately
above
switch
(Sl).
Pass
a
L/2Z°-
Long
6-32
machine
screw
through
the
lug
and
through
the
hole
provided
in
the
rear
panel.
Place
the
lug
with
the
hole/s
pointing
downward
toward
Sl.
Place
a
lock
washer
on
the
machine
screw
on
the
rear
(outside)
of
the
panel
and
secure
with
a
6-32
hex
nut
--
tighten.
Mount
two
solder
lugs
using
the
hole
provided
below
Sl.
Pass
a
3/16"
6-32
screw
through
the
hole
from
the
outside
(painted)
of
the
panel
through
two
solder
lugs
and
secure
with
a
6-32
hex
nut.
Place
the
lugs
so
that
they
point
in
opposite
directions
parallel
to
the
bottom
edge
of
the
panel.
Tighten.
Install
the
phono
type
12
V
de
connector
on
the
rear
panel
with
1/4"
4-40
machine
screws.
The
phenolic
insulating
base
of
the
connector
mounts
to
the
unpainted
inside
surface
of
the
rear
panel
with
the
shell
of
the
connector
protruding
through
the
panel.
Note
that
the
screw
holes
are
not
equally
spaced
from
the
large
hole
which
passes
the
connector
shell.
Rotate
the
connector
to
the
position
that
allows
the
connector
shell
to
become
centered
in
its
clearance
hole
when
the
mounting
holes
are
aligned
with
the
holes
pro-
vided
in
the
panel.
Secure
with
lock
washers
and
4-40
hex
nuts
--
tighten.
Attach
a
#10
solder
lug
to
the
inside
surface
of
the
rear
panel
via
the
hole
located
to
the
right
of
the
12
V
dc
connector
socket.
Attach
with
a
3a"
10-32
machine
screw
through
lug
and
panel.
Secure
with
#10
lockwasher
and
10-32
hex
nut.
(Position
terminal
end
of
lug
at
approximately
4
o'clock
position
--
tighten.)
Attach
the
assembled
SWR
board
and
the
input
coaxial
connector
similar
to
the
four
antenna
connectors.
Insert
the
threaded
portion
of
the
connector
through
the
panel
from
the
unpainted
side
of
the
panel.
The
SWR
board
as-
sembly
is
mounted
over
the
solder
terminal
end
of
the
connector
and
spaced
from
it
by
the
threaded
metal
spacers
inserted
in
the
board.
The
board
is
positioned
with
the
mounting
spacers
--
the
long
dimension
of
the
board
is
vertical
--
the
components
on
the
board
are
away
from
the
rear
panel.
Se-